Spring-lubricator.



W. H. BROWN.

SPRING LUBRIC'ATORK APPLICATION FILED MAR. 3% IBM.

15215 904. Patemed Feb. 13,1917.

UNITED STATES PATENT FFIQE.

xrxLLIAr/i n. nzsown, or CLEVELAND, oxno.

SPRING-LUBRICATOR.

Specification of Letters Phtent.

1; atentedFeb 13,1917.

Application filed March 30, 1914. Serial No. 828 137.

filg allioitonvit may concern p Be it known um 1, WILLIAM H. lflnown,aioitizen of the United. States, residing at Cleveland; injthecountyxof'Cuya-hoga and State of Ol1io,l1ave invented acertain-new and useful,Improvement. in Spring-Lubri- 'ezitors, of which the following is afull, clear,

a and exact description.

" Tl'1i s i11rention relates to a device for lubricating the contactingsurfaces between the leaves of a spring.

The object of the invention is to provide a device which is simple inconstruction, and

one that may easily be mounted. upon the spring; one which will,efliciently provide lubricant, and at the same time be compel-a tivelyfcheap 'frornthe-standpoint of construction,

Generally spez king the invention com" prises the elements andcombinations thereof set forth in the accompanying claims.

Reference should be had tothe accompanying drawings forming a. part ofthis s iiecificatio'n, in Which Figure 1 shows a side 'elei ationofa'neutomohile spring with two lubricating deviees'xnoun'ted thereon;Fig. is 'an elevation showing the inside of one part oftho luhriea'torcasing; Fig. 3 is e vertioalsection tl irough the casing and spring;Fig. l is a. section on the line 5-? of Fig; 3.

I Therehave-b'eenmany devices proposed lea of the lubricant. l 'wish tocl Thattlie 'efficiency of aspring is very greatlyincreased by keepingthe same in Well lubricated condition .is now generally 'aceepted by allpersons connected in any way; with the upkeep of vehicle springs.

M iii he-lubrieation of the spring, but in purpose in the deviceproposed in this. a pplication, to supply'lubrlcant at the portion oft-he sp'ri'ng -Where it will do the'niost good.

A es-wen knowm theusual vehicle spring f i number of fiat leaves whichis composed 0 p I are firmly' and-"tightly bound together., If e-luhcan' e' presented to the edges oi the .l of 'the sp capillary action bedrawn between ad acent leaves of the sprlngpnnd this capillary so tionis greatly magnified by the relative movementbetween-the adjacent leaveswhen the spring is flexed. Furthermore, the.

movement of the leaves "will also to a certain extent mechanically causethe 11'l"-l'1.')11tl0l1 a distin- Lain prior .lguish this propositionfrom Co,

cap fi pivota'llymo lnted upon apin e cap may be turned and in so doing.

- may be mtroduoep tlllOllgll devlce 1s that, While therelucle is in111.11g the lubricant will by art devices in \rhi: ch

placed a souree (if lubricant, which in the -1nst'ance shown 1:; a.

pad 3 which is saturated with lubricz nt. In placing tlieca-sing uponthe spring, ihe parts are placed upon opposite sides of the spring sothat the pads areheariug a gainut the edges or sidesof'the springleaves. l he pads 3 are somewhat resilient, so that t: iey bear againstthe edges of the spring leaves, andthevare' alirays in pos tion to feedlubricant .to the engaging surfaees between the leaves of the sprint. as

they more with respect to each other.

The two parts 1* and 1 are held together by means of screw bolts i asindicated in the drawing The recessed portion '2 of each part of thecasing: is suclrasuto closelv fit around the portion of the springwithivhich it engages, therehv preventing the. escal'qe, from the casingof any lubricant along the spring, except sucl. as is introducedbetiieen the leevesof the spring. I

For the purposo of introducing: the recessed portions 2, I have openings7, so thatthe-nose of anioi-l m and oil suppliedi'; A feature of pecular 'im' ortz'lnce-in my service and moving; at Whieh time. the "oil ."isre qui'red, thefibrous pad is being go ntinually agitated and the'oilparticles kept, there.-

fore, in estate of unrest. Tllisagitaltion is i not the result ofnierelyruhhing. the fibers along an unei en surface. It is due to a V2;nation-1n -the"pre's sure liietween the fibers.

This is produced by play' of the spring -l.eaves,-Wh1ch aCtlOI 1specullarly efi'ectire in nsurmg properfee l of the Oil. The flexing of;the spring causes each leaf to slide length- --w1se a-long.the ad a lentones. is Well known. Bu; there 15 another motion Thisactiou of. theleaves. fTho leaves spread fanlike.

the opening 7 '5 leaves. .The leaves also slightly .Llea- This is duetothe side sway of the vehicle and the necessary manufacturingimperfection of the uniformity in thickness and temper as well assurface finish of the spring separate that the nstantly change thepressure betl'iel fiber particles and keep the oil it es on the moveduring the whole time and are again squeezed together so io the vehicle'is in actual use.

- Another feature of importance in my device hes in the fact that I holdthe pad against the spring by means of the same fastening devices thatclamp the casing thereto. and. by having the casing take up practicallyall the thrust of this clamping action. I relieve the pad of excesspressure. thereby insuring the proper degree of pad pressure against theleaves of the spring to bring about the best distribution of thelubricant. By thus arranging the devices that the )ad-holding deviceshall take up the thrust o the clamping or anchoring means.

.1 get the further venv-importantpractical result that my device isrendered fool-proof.

in that no matter how tightly the clan'iping .bolts are drawn up the padwill be held against the spring with the desired prede- -te1 'n ii'nedpressure and no greater pressure.

I Having thus described my invention. what I claim is:

1. A lubricating device for that type of spring comprising a pluralityof superimposed leaves, consisting of a yielding lubricant holding padhaving capillary capacity and adapted to extend across the joints between the leaves. and means for holding said pad pressed against theedges of said leaves with sufficient pressure to cause the movement '40of the leaves in use to agitate the fibers of the pad, said meansembodying a. rigid member bearing against and covering the outer face ofthe pad. and devices for clamping said rigid member against the springwhereby '43 said rigid member is caused to take up the thrust due to theclamping action and thereby prevent excessive pressure on the pad.

'2. In combination with a spring comprising a )lurality of superimposedleaves. a lubricatmg appliance therefor comprising a p air oflubricating-pad-holding parts arranged at opposite sides of the springin such manner that the pads will bear against the edges of the spring,and holding means for. said parts which are common to both parts,whereby each part will form in effect a portion of the holding means ofthe other part.

2-3. In combination with a spring composed the-springs by said parts. aholding member connecting the upper ends of the parts extending acrossthe top of the spring and another holding member connecting the lowerends of the parts extending underneath the spring. whereby each of thepad-holding parts forms a portion of the holding means of the otherpad-holding part.

-l-. In combination with a spring composed of a plurality ofsuperimposed leaves, a lubricating appliance composed of a pair of partsarranged at opposite sides of the spring and projecting above and belowthe same. a lubricating pad held against the edges of the leaves by eachpart. a rigid holding me'mberextending across the top of the spring andconnecting the upper ends of said parts' and another rigid holdingmember connecting the lower ends of said parts and extending underneaththe spring. whereby each pad-holding part forms in effect a portion ofthe holding means of the other pad-holding part.

A lubricating device for that type of spring comprising a plurality ofsuperimposed lea ves. consistingof a pair of yielding lubricant-holdingpads having capillary ca pacity and adapted to extend across the jointsbetween the leaves. and means for holding said pads pressed against theopposite edges of said leaves with sufficient pressure to 'cause amovement of the leaves in use to agitate the fibers of the pad, saidmeans embodying a pair of rigid parts bearing against and covering theouter faces of the respective pads and common devices for clamping saidrigid parts against the spring. whereby said rigid parts arecaused totake up the thrust due to the clamping action and thereby preventexcessive pressure on the pads, and whereby also each of said partsforms in effect a portion of the fastening means on the other part.

In testimony whereof, I hereunto aflix my signature in the presence, oftwo witnesses.

\VILLIAM H. BROIVN. 'itnesses:

A. J. HUDSON. L. I. Pon'rnm

